CVE-2021-24744

Cimatti Contact Forms <= 1.4.11 - Cross-Site Scripting

2021-09-27 00:00

Strategic Overview

Status: Patched in 1.4.12
Affected Plugin: Contact Forms by Cimatti
Affected Version: < 1.4.12
CVSS: 5.5Medium
Weakness type: CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE: CVE-2021-24744

View all Contact Forms by Cimatti vulnerabilities

At a glance

CVE-2021-24744 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Contact Forms by Cimatti WordPress plugin, affecting versions < 1.4.12. It carries a CVSS score of 5.5 (reachable over the network; low attack complexity). The issue is fixed in version 1.4.12; sites on affected versions should update now. Disclosed September 2021, reported by Felipe Restrepo Rodriguez (pfelilpe).

Vulnerability Overview

The Cimatti Contact Forms plugin for WordPress is vulnerable to Cross-Site Scripting in versions up to, and including, 1.4.11.This is due to insufficient input sanitization and output escaping on the title value of a form and makes it possible for attackers to inject arbitrary web scripts that execute in a victim's browser. This only affects multi-site installations and installations where unfiltered_html is disabled.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in Contact Forms by Cimatti < 1.4.12 takes a caller who can reach the endpoint. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Contact Forms by Cimatti the fix is 1.4.12: builds < 1.4.12 are affected, anything from 1.4.12 onward is not.

Remediation

Update to version 1.4.12, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Contact Forms by Cimatti: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Contact Forms by Cimatti 1.4.12 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2021-24744 https://www.wordfence.com/threat-intel/vulnerabilities/id/09952b56-a064-46f9-b037-be86cf6df781 https://nvd.nist.gov/vuln/detail/CVE-2021-24744

Related records

Same weakness class

Other vulnerabilities in Contact Forms by Cimatti

CVSS Vector

5.5

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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